The DNA ring is awesome!!! I might just have to get it... One thing I noticed though... The espresso cup is a terrible idea: https://pinshape.com/items/221-3d-pr...k-espresso-cup

Not only is an unfinished 3D printed part not food safe (hotend contaminants AND bacteria buildup in the ridges between layers), but pouring hot liquid into a PLA cup would soften it (ouch!) and it could release poisonous pigments, plasticizers and modifiers into your drink!